So what if you had a simple web service going live July 11th congratulating the new World Cup winners? How would you make sure that visitor will see the greeting in their own language? By crowdsourcing you your localization of course. See the example project at: http://www.getlocalization.com/WeAreTheChampions

By the way, if you really want to build an app like this go on and sign up to our free beta.